[Perspectives pour la caractérisation des planètes habitables]
Avec des milliers d’exoplanètes identifiées, la caractérisation des planètes habitables et l’identification potentielle de celles qui seraient habitées est un défi majeur pour les décennies à venir. Nous rappelons en premier lieu la définition des planètes habitables et les perspectives d’observation à venir pour leur caractérisation. Nous présentons ensuite une approche innovante pour évaluer l’habitabilité et l’habitation pour des systèmes extraterrestres. Cette méthode intégrée couple pour la première fois la modélisation de l’atmosphère et de l’intérieur planétaires avec l’activité biologique basée sur la modélisation des écosystèmes. Nous passons en revue ici les premières applications de cette approche pour évaluer la probabilité et l’impact de la méthanogénèse pour Encelade, la Terre primitive et Mars primitive. En se basant sur ces applications pour les situations du système solaire où l’habitabilité et l’habitation sont remises en question, nous montrons comment la méthode peut être utilisée pour éclairer la conception des futurs observatoires spatiaux en considérant l’habitabilité et l’habitation des exoplanètes semblables à la Terre autour d’étoiles semblables au Soleil.
With thousands of exoplanets now identified, the characterization of habitable planets and the potential identification of inhabited ones is a major challenge for the coming decades. We review the current working definition of habitable planets, the upcoming observational prospects for their characterization and present an innovative approach to assess habitability and inhabitation. This integrated method couples for the first time the atmosphere and the interior modeling with the biological activity based on ecosystem modeling. We review here the first applications of the method to asses the likelihood and impact of methanogenesis for Enceladus, primitive Earth, and primitive Mars. Informed by these applications for solar system situations where habitability and inhabitation is questionned, we show how the method can be used to inform the design of future space observatories by considering habitability and inhabitation of Earth-like exoplanets around sun-like stars.
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Mot clés : planètes, exoplanètes, zone habitable, planètes habitables, habitabilité
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@article{CRPHYS_2023__24_S2_A15_0,
author = {Stephane Mazevet and Antonin Affholder and Boris Sauterey and Alex Bixel and Daniel Apai and Regis Ferriere},
title = {Prospects for the characterization of habitable planets},
journal = {Comptes Rendus. Physique},
publisher = {Acad\'emie des sciences, Paris},
year = {2023},
doi = {10.5802/crphys.154},
language = {en},
note = {Online first},
}
TY - JOUR AU - Stephane Mazevet AU - Antonin Affholder AU - Boris Sauterey AU - Alex Bixel AU - Daniel Apai AU - Regis Ferriere TI - Prospects for the characterization of habitable planets JO - Comptes Rendus. Physique PY - 2023 PB - Académie des sciences, Paris N1 - Online first DO - 10.5802/crphys.154 LA - en ID - CRPHYS_2023__24_S2_A15_0 ER -
%0 Journal Article %A Stephane Mazevet %A Antonin Affholder %A Boris Sauterey %A Alex Bixel %A Daniel Apai %A Regis Ferriere %T Prospects for the characterization of habitable planets %J Comptes Rendus. Physique %D 2023 %I Académie des sciences, Paris %Z Online first %R 10.5802/crphys.154 %G en %F CRPHYS_2023__24_S2_A15_0
Stephane Mazevet; Antonin Affholder; Boris Sauterey; Alex Bixel; Daniel Apai; Regis Ferriere. Prospects for the characterization of habitable planets. Comptes Rendus. Physique, Online first (2023), pp. 1-16. doi : 10.5802/crphys.154.
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